(Modified:
2026-06-28)
— Written by
SimeonOnSecurity— 6 min read
Master Linux security for the CompTIA Linux+ XK0-005 exam. Learn permissions, special bits, ACLs, sudo, PAM, SSH hardening, SELinux, AppArmor, firewalls, auditing, OpenSSL, and gpg with real examples.
(Modified:
2026-08-01)
— Written by
SimeonOnSecurity— 4 min read
Master post-exploitation and lateral movement for the CompTIA PenTest+ PT0-003 exam. Learn persistence, lateral movement, staging and exfiltration, and cleanup and restoration.
(Modified:
2026-06-28)
— Written by
SimeonOnSecurity— 4 min read
Master attacks and exploits for the CompTIA PenTest+ PT0-003 exam. Learn network, host, web, authentication, wireless, social engineering, cloud, and specialized system attacks plus scripting.
(Modified:
2026-06-28)
— Written by
SimeonOnSecurity— 5 min read
Master reconnaissance and enumeration for the CompTIA PenTest+ PT0-003 exam. Learn OSINT, active and passive recon, enumeration techniques, secrets discovery, and the right tools.
(Modified:
2026-08-01)
— Written by
SimeonOnSecurity— 4 min read
A comprehensive CompTIA PenTest+ (PT0-003) study course covering engagement management, reconnaissance and enumeration, vulnerability discovery, attacks and exploits, and post-exploitation and lateral movement.
(Modified:
2026-06-29)
— Written by
SimeonOnSecurity— 5 min read
Master AI-assisted security for the CompTIA SecAI+ CY0-001 exam. Learn AI-enabled security tools, defensive use cases, security automation, CI/CD integration, and how attackers weaponize AI for deepfakes, social engineering, and automated attack generation.
(Modified:
2026-06-29)
— Written by
SimeonOnSecurity— 9 min read
Master securing AI systems for the CompTIA SecAI+ CY0-001 exam. Learn AI threat-modeling frameworks, model and gateway controls, access controls, data protection, monitoring and auditing, and defenses against adversarial attacks like prompt injection and model poisoning.
(Modified:
2026-06-29)
— Written by
SimeonOnSecurity— 5 min read
Master OT incident management for the CompTIA SecOT+ SOT-001 exam. Learn the PICERL model, ICS4ICS, response plans and playbooks, exercises, OT-specific incident effects like loss of view and control, forensics, and containment through recovery.